请老师将强弱势公式及趋势信号改为通达信公式强弱势公式源码：A1:=(EMA(((O+H+L+C)/4),3)+EMA(((O+H+L+C)/4),6)+EMA(((O+H+L+C)/4),9))/3;A2:=(EMA(((O+H+L+C)/4),5)+EMA(((O+H+L+C)/4),10)+EMA(((O+H+L+C)/4),20))/3;A3:=(EMA(((O+H+L+C)/4),7)+EMA(((O+H+L+C)/4),14)+EMA(((O+H+L+C)/4),28))/3;A4:=(EMA(((O+H+L+C)/4),9)+EMA(((O+H+L+C)/4),18)+EMA(((O+H+L+C)/4),36))/3;A5:=(EMA(((O+H+L+C)/4),11)+EMA(((O+H+L+C)/4),22)+EMA(((O+H+L+C)/4),44))/3;A6:=(EMA(((O+H+L+C)/4),13)+EMA(((O+H+L+C)/4),26)+EMA(((O+H+L+C)/4),52))/3;A7:=(EMA(((O+H+L+C)/4),21)+EMA(((